Alert archive / Wyoming / High Wind Warnings in 2017

High Wind Warning 23, NWS Riverton, WY

October 21, 20177 counties in Wyoming

NWS Riverton, WY issued this high wind warning at Oct 21, 2017, 2:11 PM MDT for 7 counties in Wyoming. It took effect at Oct 21, 2017, 9:00 PM MDT. It was in force for 29 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 21, 2017, 2:11 PM MDT (20:11 UTC)
In effect from
Oct 21, 2017, 9:00 PM MDT
Expired
Oct 23, 2017, 2:20 AM MDT
In force
29 hr
Issued by
NWS Riverton, WY

Counties Fremont County, WY, Hot Springs County, WY, Johnson County, WY, Natrona County, WY, Park County, WY, Sublette County, WY, Sweetwater County, WY

The radar

The Riverton/Lander radar (KRIW), 21 km from the middle of the area, began a volume at 20:09 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Riverton, WY (KRIW), launched 12:00Z, 8.2 hours before the alert went out and 19 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Riverton, WY at 12:00Z on 2017-10-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 12:00Z on 2017-10-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2173 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
-2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

996 
WWUS75 KRIW 212011
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
211 PM MDT Sat Oct 21 2017

...High Wind Warning for portions of northwest Wyoming tonight
through Sunday evening

...High Wind watch for portions of Natrona and Fremont Counties
tonight...

.Another round of strong to possibly high wind is expected
tonight and Sunday across portions of northwest Wyoming.

WYZ003-221000-
/O.UPG.KRIW.HW.A.0015.171022T0600Z-171023T0600Z/
/O.NEW.KRIW.HW.W.0023.171022T0300Z-171023T0600Z/
Cody Foothills-
Including the cities of Cody and Meeteetse
211 PM MDT Sat Oct 21 2017

...HIGH WIND WARNING IN EFFECT FROM 9 PM THIS EVENING TO MIDNIGHT
MDT SUNDAY NIGHT...

The National Weather Service in Riverton has issued a High Wind
Warning, which is in effect from 9 PM this evening to midnight
MDT Sunday night. The High Wind Watch is no longer in effect. 

* TIMING...Winds will increase this evening and may become quite
  strong before later tonight decreasing by later Sunday night. 

* WINDS...West to southwest 20 to 50 mph...highest over the
  mountains and near Clark Wyoming...with gusts to 60 mph.
  Occasional gusts to 70 to 80 mph are possible across Highway 120.
 
* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ002-221000-
/O.UPG.KRIW.HW.A.0015.171022T0600Z-171023T0600Z/
/O.NEW.KRIW.HW.W.0023.171022T0300Z-171023T0600Z/
Absaroka Mountains-
211 PM MDT Sat Oct 21 2017

...HIGH WIND WARNING IN EFFECT FROM 9 PM THIS EVENING TO MIDNIGHT
MDT SUNDAY NIGHT...

The National Weather Service in Riverton has issued a High Wind
Warning, which is in effect from 9 PM this evening to midnight
MDT Sunday night. The High Wind Watch is no longer in effect. 

* TIMING...Winds will increase this evening and may become quite
  strong before later tonight decreasing by later Sunday night. 

* WINDS...West to southwest 20 to 50 mph...with gusts to 60 mph.
  Occasional gusts to 65 to 75 mph are possible across the Chief
  Joseph Highway. 

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ016-221000-
/O.UPG.KRIW.HW.A.0015.171022T0600Z-171023T0600Z/
/O.NEW.KRIW.HW.W.0023.171022T0300Z-171023T0600Z/
Upper Wind River Basin-
Including the city of Dubois
211 PM MDT Sat Oct 21 2017

...HIGH WIND WARNING IN EFFECT FROM 9 PM THIS EVENING TO MIDNIGHT
MDT SUNDAY NIGHT...

The National Weather Service in Riverton has issued a High Wind
Warning, which is in effect from 9 PM this evening to midnight
MDT Sunday night. The High Wind Watch is no longer in effect. 

* TIMING...Winds will increase this evening and may become quite 
  strong before sunrise Sunday decreasing Sunday night. 

* WINDS...West to southwest 20 to 40 mph gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ019-020-221000-
/O.NEW.KRIW.HW.A.0016.171022T1500Z-171023T0000Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
211 PM MDT Sat Oct 21 2017

...HIGH WIND WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
AFTERNOON...

The National Weather Service in Riverton has issued a High Wind
Watch, which is in effect from Sunday morning through Sunday
afternoon. 

* TIMING...Winds will increase Sunday morning and may become quite
  strong later in the morning and afternoon before decreasing
  after sunset.

* WINDS...Southwest 25 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile
  lightweight vehicles...including along Wyoming Boulevard south
  of Casper and along Us Highway 287.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$

WYZ015-018-221000-
/O.NEW.KRIW.HW.A.0016.171022T1200Z-171022T2100Z/
Wind River Mountains East-Lander Foothills-
Including the city of Lander
211 PM MDT Sat Oct 21 2017

...HIGH WIND WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
AFTERNOON...

The National Weather Service in Riverton has issued a High Wind
Watch, which is in effect from Sunday morning through Sunday
afternoon. 

* TIMING...Winds may increase tomorrow morning and become strong
  on Sunday before decreasing late Sunday.

* WINDS...West to southwest 20 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$
7 follow-up statements
742 
WWUS75 KRIW 212352
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
552 PM MDT Sat Oct 21 2017

...Multiple High Wind Watches and Warnings are in effect for
portions of central and northwest Wyoming tonight through Sunday
evening...

.Another round of strong to high wind is expected tonight and 
Sunday across portions of northwest and central Wyoming before
decreasing Sunday evening.

WYZ019-020-220915-
/O.UPG.KRIW.HW.A.0016.171022T1500Z-171023T0000Z/
/O.EXB.KRIW.HW.W.0023.171022T1200Z-171023T0000Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
552 PM MDT Sat Oct 21 2017

...HIGH WIND WARNING IN EFFECT FROM 6 AM TO 6 PM MDT SUNDAY...

The National Weather Service in Riverton has issued a High Wind
Warning, which is in effect from 6 AM to 6 PM MDT Sunday. The
High Wind Watch is no longer in effect. 

* TIMING...Winds will increase rapidly Sunday morning across
  Natrona County, and southeast Fremont County, and remain strong
  through the afternoon. 

* WINDS...Southwest 30 to 40 mph with gusts to 60 mph. 

* IMPACTS...Strong crosswinds will pose a risk to high profile
  lightweight vehicles...including along Wyoming Boulevard south
  of Casper, and along Highway 287, 789 in southeast Fremont 
  County.
  
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ003-220915-
/O.CON.KRIW.HW.W.0023.171022T0300Z-171023T0600Z/
Cody Foothills-
Including the cities of Cody and Meeteetse
552 PM MDT Sat Oct 21 2017

...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO
MIDNIGHT MDT SUNDAY NIGHT...

* TIMING...The strong winds are expected at times tonight after 9
  PM from just south of Cody to Clark. On Sunday the strong winds
  will expand to include much of the Cody Foothills. Winds are
  expected to gradually weaken late Sunday evening. 

* WINDS...West to southwest 30 to 40 mph...with gusts of 55 to 65
  mph. Occasional gusts to 80 mph are expected near clark.

* IMPACTS...Strong and sudden crosswinds will pose an extreme
  blowover risk to high profile or light-weight vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ002-220915-
/O.CON.KRIW.HW.W.0023.171022T0300Z-171023T0600Z/
Absaroka Mountains-
552 PM MDT Sat Oct 21 2017

...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO
MIDNIGHT MDT SUNDAY NIGHT...

* TIMING...Strong to possibly damaging winds are expected to
  develop between 9 PM and midnight, and remain strong through the
  day Sunday, before gradually weakening by late Sunday evening.

* WINDS...West to southwest 30 to 50 mph...with gusts 60 to 80
  mph. 

* IMPACTS...Strong winds will pose a risk to high profile
  lightweight vehicles. Hunters and those recreating near trees, 
  should be aware and prepared for the possibility of falling 
  trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. 

&&

$$

WYZ016-220915-
/O.CON.KRIW.HW.W.0023.171022T0300Z-171023T0600Z/
Upper Wind River Basin-
Including the city of Dubois
552 PM MDT Sat Oct 21 2017

...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO
MIDNIGHT MDT SUNDAY NIGHT...

* TIMING...Winds will increase this evening and may become quite
  strong at times before sunrise Sunday. The strong winds are
  expected to continue Sunday before decreasing Sunday evening. 

* WINDS...West to southwest 30 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles. Hunters and those recreating near trees, 
  should be aware and prepared for the possibility of falling 
  trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ015-018-220915-
/O.CON.KRIW.HW.A.0016.171022T1200Z-171022T2100Z/
Wind River Mountains East-Lander Foothills-
Including the city of Lander
552 PM MDT Sat Oct 21 2017

...HIGH WIND WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY AFTERNOON...

* TIMING...Winds may increase tomorrow morning and become strong 
  on Sunday before decreasing late Sunday. 

* WINDS...West to southwest 20 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$

TEAM RIVERTON/21
846 
WWUS75 KRIW 220814
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
214 AM MDT Sun Oct 22 2017

...Multiple High Wind Watches and Warnings are in effect for
portions of central and northwest Wyoming through Sunday 
night...

.Another round of strong to high wind is expected Sunday night 
and Monday across northern portions of Johnson County before 
decreasing Monday afternoon.

WYZ015-222200-
/O.UPG.KRIW.HW.A.0016.171022T1200Z-171022T2100Z/
/O.EXB.KRIW.HW.W.0023.171022T1200Z-171023T0600Z/
Wind River Mountains East-
214 AM MDT Sun Oct 22 2017

...HIGH WIND WARNING IN EFFECT FROM 6 AM THIS MORNING TO MIDNIGHT
MDT TONIGHT...

The National Weather Service in Riverton has issued a High Wind
Warning, which is in effect from 6 AM this morning to midnight
MDT tonight. The High Wind Watch is no longer in effect. 

* TIMING...Strong to possibly damaging winds are expected to
  increase between midnight and 6 am this morning and remain
  strong through the day Sunday before decreasing Sunday night. 

* WINDS...West to northwest 30 to 50 mph...with gusts to 60 to 80
  mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles. Hunters and those recreating near trees, 
  should be aware and prepared for the possibility of falling 
  trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ018-222200-
/O.UPG.KRIW.HW.A.0016.171022T1200Z-171022T2100Z/
/O.EXA.KRIW.HW.W.0023.171022T1200Z-171023T0000Z/
Lander Foothills-
Including the city of Lander
214 AM MDT Sun Oct 22 2017

...HIGH WIND WARNING IN EFFECT FROM 6 AM THIS MORNING TO 6 PM MDT
THIS EVENING...

The National Weather Service in Riverton has issued a High Wind
Warning, which is in effect from 6 AM this morning to 6 PM MDT
this evening. The High Wind Watch is no longer in effect. 

* TIMING...Strong winds are expected before sunrise this morning
  and remain strong through the day Sunday...before decreasing
  late Sunday. 

* WINDS...West to southwest 20 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ003-222200-
/O.CON.KRIW.HW.W.0023.000000T0000Z-171023T0600Z/
Cody Foothills-
Including the cities of Cody and Meeteetse
214 AM MDT Sun Oct 22 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...The strong winds are expected at times Saturday night
  from just south of Cody to Clark, before expanding to include
  much of the Cody Foothills by sunrise today. Winds are expected
  to gradually weaken late Sunday evening. 

* WINDS...West to southwest 30 to 40 mph...with gusts of 55 to 
  65 mph. Occasional gusts to 80 mph are expected near clark.

* OBSERVED WINDS...A wind gust of 58 mph occurred at 10pm Saturday
  night SW of Clark. A wind gust of 65 mph occurred at 11pm at the
  Clark Fire Station.  

* IMPACTS...Strong and sudden crosswinds will pose an extreme 
  blowover risk to high profile or light-weight vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ002-222200-
/O.CON.KRIW.HW.W.0023.000000T0000Z-171023T0600Z/
Absaroka Mountains-
214 AM MDT Sun Oct 22 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...Strong to possibly damaging winds are expected today,
  and remain strong through the day, before gradually weakening 
  by late Sunday evening. 

* WINDS...West to southwest 30 to 50 mph...with gusts 60 to 80 
  mph. 

* IMPACTS...Strong winds will pose a risk to high profile 
  lightweight vehicles. Hunters and those recreating near trees, 
  should be aware and prepared for the possibility of falling 
  trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring.

&&

$$

WYZ016-222200-
/O.CON.KRIW.HW.W.0023.000000T0000Z-171023T0600Z/
Upper Wind River Basin-
Including the city of Dubois
214 AM MDT Sun Oct 22 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...Winds will continue to increase this morning and may
  become quite strong at times before sunrise today. The strong 
  winds are expected to continue through the day before decreasing
  Sunday evening. 

* WINDS...West to southwest 30 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles. Hunters and those recreating near trees, 
  should be aware and prepared for the possibility of falling 
  trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ019-020-222200-
/O.CON.KRIW.HW.W.0023.171022T1200Z-171023T0000Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
214 AM MDT Sun Oct 22 2017

...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 AM THIS MORNING TO
6 PM MDT THIS EVENING...

* TIMING...Winds will increase rapidly this morning across 
  Natrona County, and southeast Fremont County, and remain strong 
  through the afternoon. 

* WINDS...Southwest 30 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles...including along Wyoming Boulevard south 
  of Casper, and along Highway 287, 789 in southeast Fremont 
  County. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ010-222200-
/O.NEW.KRIW.HW.A.0017.171023T0600Z-171023T1800Z/
Northeast Johnson County-
Including the city of Buffalo
214 AM MDT Sun Oct 22 2017

...HIGH WIND WATCH IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...

The National Weather Service in Riverton has issued a High Wind
Watch, which is in effect from late tonight through Monday
morning. 

* TIMING...Winds will rapidly increase Sunday night ahead of a
  fast moving cold front. Strong winds will continue through the
  the morning hours, gradually subsiding Monday afternoon behind
  the cold front.

* WINDS...Northwest winds 20 to 40 mph with gusts up to 60 mph. 

* IMPACTS...Strong winds will pose a risk to high profile 
  lightweight vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$
847 
WWUS75 KRIW 221924
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
124 PM MDT Sun Oct 22 2017

...Multiple High Wind Watches and Warnings are in effect for
central and northwest Wyoming Sunday night into Monday...

.Another round of high wind is expected Sunday night and Monday 
across northern portions of Johnson County before decreasing 
Monday afternoon.

WYZ003-230000-
/O.CON.KRIW.HW.W.0023.000000T0000Z-171023T0600Z/
Cody Foothills-
Including the cities of Cody and Meeteetse
124 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...The strong winds are expected through midnight tonight.
  High winds are expected across the Cody Foothills with the
  highest winds around Clark. Winds are expected to gradually
  weaken late this evening. 

* WINDS...West to southwest 30 to 40 mph...with gusts of 55 to 
  65 mph. Occasional gusts to 80 mph are expected near clark. 

* OBSERVED WINDS...A wind gust of 76 mph was reported near Clark.
  A wind gust of 82 mph occurred on Chief Joseph highway.

* IMPACTS...Strong and sudden crosswinds will pose an extreme 
  blowover risk to high profile or light-weight vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ002-230000-
/O.CON.KRIW.HW.W.0023.000000T0000Z-171023T0600Z/
Absaroka Mountains-
124 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...Strong to possibly damaging winds are expected today, 
  and remain strong through the day, before gradually weakening 
  by late Sunday evening. 

* WINDS...West to southwest 40 to 50 mph...with gusts 60 to 80 
  mph. 

* Observed winds...A gust to 82 mph has been reported on Chief
  Joseph highway.

* IMPACTS...Strong winds will pose a risk to high profile 
  lightweight vehicles. Hunters and those recreating near trees, 
  should be aware and prepared for the possibility of falling 
  trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring.

&&

$$

WYZ016-230000-
/O.CON.KRIW.HW.W.0023.000000T0000Z-171023T0600Z/
Upper Wind River Basin-
Including the city of Dubois
124 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...Winds will continue through the day before decreasing 
  Sunday evening. 

* WINDS...West to southwest 30 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles. Hunters and those recreating near trees, 
  should be aware and prepared for the possibility of falling 
  trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ019-020-230000-
/O.CON.KRIW.HW.W.0023.000000T0000Z-171023T0000Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
124 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* TIMING...Winds will continue across Natrona County, and southern 
  Fremont County, and remain strong through the afternoon. 

* WINDS...Southwest 30 to 40 mph with gusts to 60 mph.

* Observed winds...A gust to 86 mph has been reported near Muddy
  Gap.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles...including along Wyoming Boulevard south 
  of Casper, and along Highway 287, 789 in southeast Fremont 
  County. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ018-230000-
/O.CON.KRIW.HW.W.0023.000000T0000Z-171023T0000Z/
Lander Foothills-
Including the city of Lander
124 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* TIMING...Strong winds are expected through the day before
  decreasing around 6 pm mdt.

* WINDS...West to southwest 30 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ015-230000-
/O.CON.KRIW.HW.W.0023.000000T0000Z-171023T0600Z/
Wind River Mountains East-
124 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...High winds are expected to remain strong through the 
  day Sunday before decreasing Sunday night. 

* WINDS...West to northwest 30 to 50 mph...with gusts to 60 to 
  80 mph. 

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles. Hunters and those recreating near trees, 
  should be aware and prepared for the possibility of falling 
  trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ010-230000-
/O.CON.KRIW.HW.A.0017.171023T0600Z-171023T1800Z/
Northeast Johnson County-
Including the city of Buffalo
124 PM MDT Sun Oct 22 2017

...HIGH WIND WATCH REMAINS IN EFFECT FROM MIDNIGHT MDT TONIGHT
THROUGH MONDAY MORNING...

* TIMING...Winds will rapidly increase Sunday night ahead of a 
  fast moving cold front. Strong winds will continue through the 
  the morning hours, gradually subsiding Monday afternoon behind 
  the cold front. 

* WINDS...Northwest winds 30 to 40 mph with gusts up to 60 mph.

* IMPACTS...Strong winds will pose a risk to high profile 
  lightweight vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$
987 
WWUS75 KRIW 222220
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
420 PM MDT Sun Oct 22 2017

...Multiple High Wind Watches and Warnings are in effect for
central and northwest Wyoming Sunday night into Monday...

.Another round of high wind is expected Sunday night and Monday
across northern portions of Johnson County before decreasing
Monday afternoon.

WYZ018-222330-
/O.CAN.KRIW.HW.W.0023.000000T0000Z-171023T0000Z/
Lander Foothills-
Including the city of Lander
420 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING IS CANCELLED...

The National Weather Service in Riverton has cancelled the High
Wind Warning. Winds are no longer expected to reach high wind.

$$

WYZ015-222330-
/O.CAN.KRIW.HW.W.0023.000000T0000Z-171023T0600Z/
Wind River Mountains East-
420 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING IS CANCELLED...

The National Weather Service in Riverton has cancelled the High
Wind Warning. Winds are no longer expected to reach high wind.

$$

WYZ003-230600-
/O.CON.KRIW.HW.W.0023.000000T0000Z-171023T0600Z/
Cody Foothills-
Including the cities of Cody and Meeteetse
420 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...The strong winds are expected through midnight 
  tonight. High winds are expected across the Cody Foothills 
  with the highest winds around Clark. Winds are expected to 
  gradually weaken late this evening. 

* WINDS...West to southwest 30 to 40 mph...with gusts of 55 to 
  65 mph. Occasional gusts to 80 mph are expected near clark. 

* OBSERVED WINDS...A wind gust of 76 mph was reported near 
  Clark. A wind gust of 82 mph occurred on Chief Joseph highway. 

* IMPACTS...Strong and sudden crosswinds will pose an extreme 
  blowover risk to high profile or light-weight vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ002-230600-
/O.CON.KRIW.HW.W.0023.000000T0000Z-171023T0600Z/
Absaroka Mountains-
420 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...Strong to possibly damaging winds are expected today, 
  and remain strong through the day, before gradually weakening 
  by late Sunday evening. 

* WINDS...West to southwest 40 to 50 mph...with gusts 60 to 80 
  mph. 

* Observed winds...A gust to 82 mph has been reported on Chief 
  Joseph highway. 

* IMPACTS...Strong winds will pose a risk to high profile 
  lightweight vehicles. Hunters and those recreating near trees, 
  should be aware and prepared for the possibility of falling 
  trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring.

&&

$$

WYZ016-230600-
/O.CON.KRIW.HW.W.0023.000000T0000Z-171023T0600Z/
Upper Wind River Basin-
Including the city of Dubois
420 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...Winds will continue through the day before decreasing 
  Sunday evening. 

* WINDS...West to southwest 30 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles. Hunters and those recreating near trees, 
  should be aware and prepared for the possibility of falling 
  trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ019-020-230000-
/O.CON.KRIW.HW.W.0023.000000T0000Z-171023T0000Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
420 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* TIMING...Winds will continue across Natrona County, and 
  southern Fremont County, and remain strong through the 
  afternoon. 

* WINDS...Southwest 30 to 40 mph with gusts to 60 mph.

* Observed winds...A gust to 86 mph has been reported near Muddy 
  Gap. 

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles...including along Wyoming Boulevard south 
  of Casper, and along Highway 287, 789 in southeast Fremont 
  County. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ010-230630-
/O.CON.KRIW.HW.A.0017.171023T0600Z-171023T1800Z/
Northeast Johnson County-
Including the city of Buffalo
420 PM MDT Sun Oct 22 2017

...HIGH WIND WATCH REMAINS IN EFFECT FROM MIDNIGHT MDT TONIGHT
THROUGH MONDAY MORNING...

* TIMING...Winds will rapidly increase late tonight ahead of a 
  fast moving cold front. Strong winds will continue through the 
  the morning hours, gradually subsiding Monday afternoon behind 
  the cold front. 

* WINDS...Northwest winds 30 to 40 mph with gusts up to 60 mph.

* IMPACTS...Strong winds will pose a risk to high profile 
  lightweight vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$

21
953 
WWUS75 KRIW 222339
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
539 PM MDT Sun Oct 22 2017

...High Wind Warning for the Cody Foothills and Absaroka 
Mountains through Midnight...

...High Wind Warning for Northeast Johnson County Tonight...

.Strong to possibly damaging winds across the Absaroka and Cody
Foothills are expected to weaken between 9 PM and midnight. Across
northeast Johnson County, strong winds are expected to develop mid
to late evening as a strong cold front pulls across the area.

WYZ016-230045-
/O.CAN.KRIW.HW.W.0023.000000T0000Z-171023T0600Z/
Upper Wind River Basin-
Including the city of Dubois
539 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING IS CANCELLED...

The National Weather Service in Riverton has cancelled the High
Wind Warning. Winds are no longer expected to reach high wind
criteria.

$$

WYZ019-020-230045-
/O.EXP.KRIW.HW.W.0023.000000T0000Z-171023T0000Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
539 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING...

Although winds will remain windy through midnight, widespread 
high wind is not expected. Thus the high wind warning will be
allowed to expire at 6 PM.

$$

WYZ010-230745-
/O.UPG.KRIW.HW.A.0017.171023T0600Z-171023T1800Z/
/O.EXB.KRIW.HW.W.0023.171023T0200Z-171023T1200Z/
Northeast Johnson County-
Including the city of Buffalo
539 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING IN EFFECT UNTIL 6 AM MDT MONDAY...

The National Weather Service in Riverton has issued a High Wind
Warning, which is in effect until 6 AM MDT Monday. The High Wind
Watch is no longer in effect. 

* TIMING...Winds will rapidly increase mid to late evening as a
  cold front pulls across the area. The strongest winds are
  expected between 10 PM and 2 AM tonight. 

* WINDS...Northwest winds 30 to 40 mph with gusts up to 60 mph.

* IMPACTS...Strong winds will pose a risk to high profile 
  lightweight vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ003-230600-
/O.CON.KRIW.HW.W.0023.000000T0000Z-171023T0600Z/
Cody Foothills-
Including the cities of Cody and Meeteetse
539 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...Winds are expected to remain strong through early
  evening, with a trend of decreasing wind especially across the
  Cody Foothills between 7 PM and 9 PM.

* WINDS...West to southwest 30 to 40 mph...with gusts of 55 to 65
  mph.  

* OBSERVED WINDS...A wind gust of 76 mph was reported near 
  Clark. A wind gust of 82 mph occurred on Chief Joseph highway. 

* IMPACTS...Strong and sudden crosswinds will pose an extreme 
  blowover risk to high profile or light-weight vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ002-230600-
/O.CON.KRIW.HW.W.0023.000000T0000Z-171023T0600Z/
Absaroka Mountains-
539 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...Winds will be remain strong to possibly damaging
  through mid-evening, before a gradaul decrease is expected
  during the late evening hours.

* WINDS...West to southwest 40 to 50 mph...with gusts 60 to 80 
  mph. 

* Observed winds...A gust to 82 mph has been reported on Chief 
  Joseph highway. 

* IMPACTS...Strong winds will pose a risk to high profile 
  lightweight vehicles. Hunters and those recreating near trees, 
  should be aware and prepared for the possibility of falling 
  trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring.

&&

$$

Team Riverton/21
666 
WWUS75 KRIW 230241
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
841 PM MDT Sun Oct 22 2017

...High Wind Warning for Northeast Johnson County Tonight...

.Strong to high winds are expected across northeast Johnson 
County at times through the predawn hours Monday morning.

WYZ002-003-230345-
/O.CAN.KRIW.HW.W.0023.000000T0000Z-171023T0600Z/
Absaroka Mountains-Cody Foothills-
Including the cities of Cody and Meeteetse
841 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING IS CANCELLED...

The National Weather Service in Riverton has cancelled the High
Wind Warning. Although winds will be windy over the next few
hours, winds are no longer expected to reach high wind criteria.
Thus the high wind warning for the Cody Foothills, and the
Absaroka Mountains have been cancelled.

$$

WYZ010-231200-
/O.CON.KRIW.HW.W.0023.000000T0000Z-171023T1200Z/
Northeast Johnson County-
Including the city of Buffalo
841 PM MDT Sun Oct 22 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* TIMING...Tonight, with the strongest winds expected between 10
  PM and 2 AM. 

* WINDS...Northwest winds 30 to 40 mph with gusts up to 60 mph.

* IMPACTS...Strong winds will pose a risk to high profile 
  lightweight vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

21
455 
WWUS75 KRIW 230820
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
220 AM MDT Mon Oct 23 2017

...Strong winds have diminished this morning over northern Johnson
County...

.Although gusty winds will continue through the day today, strong
winds are not longer expected.

WYZ010-230930-
/O.CAN.KRIW.HW.W.0023.000000T0000Z-171023T1200Z/
Northeast Johnson County-
Including the city of Buffalo
220 AM MDT Mon Oct 23 2017

...HIGH WIND WARNING IS CANCELLED...

The National Weather Service in Riverton has cancelled the High
Wind Warning. 

Northwest winds have diminished already this morning, although 
gusts up to 45 mph will remain possible through the rest of the 
day today.

$$

What forecasters said that day

The local office's own words before this high wind warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Riverton, WY wrote its last area forecast discussion before this high wind warning went out at Oct 21, 11:29 AM MDT, 2 hours 42 minutes earlier.

Area forecast discussion, Oct 21, 11:29 AM MDT, 2 hours 42 minutes before
Area Forecast Discussion
National Weather Service Riverton WY
1129 AM MDT Sat Oct 21 2017

.SHORT TERM...(Today through Monday night)

Synopsis...The upper level trough axis, supporting yesterday's cold
front, is making its way over WY this morning and is expected to be
over the High Plains by this afternoon. A shortwave ridge will build
in behind this trough, before flattening due to a 140kt jet along
the US/Canadian border by 12Z Sunday. This jet will remain, as a
ridge builds over the EPAC into the Yukon Territory. This will cause
a clipper system to begin to dig a trough over the Upper Midwest and
thus cause the jet to move over NE WY. The nose of this 120-140kt
jet will remain over NE WY through the day Monday, as the ridge
strengthens and builds over the western CONUS. The core of the jet
will finally shift east out of the forecast area by the end of the
period.

Discussion...Breezy winds will continue this morning, due to the
tight pressure gradient that remains across the state. H7 winds will
range between 20-30kt, as the trough passes over the area today. At
the same time, the pressure gradient will loosen as high pressure
builds in from the west. This will be offset as downsloping winds
develop this evening east of the Absarokas and Wind River Mountains.
H7 temps will quickly warm from -7/-8C at 18Z today to +1C by 06Z
Sun, creating a tight temperature gradient along the east side of
the mountains. H7 W-NW winds of 40-50kt will strengthen by this
time and continue through the day Sunday. The aforementioned
clipper system will begin to impact northern WY by 00Z Monday,
cooling temperatures and weakening the temperature gradient once
again. Thus, will keep the High Wind Watch going for zones 2, 3
and 16 and extend the time for zone 16 to match the other zones.
The winds in this area could continue toward 06Z Monday, as
opposed to weakening after 18Z Sunday. Will leave for the next
shift to narrow down the timing for this eventual warning. A High
Wind Watch may also be needed for northern Johnson County Monday,
as the nose of the jet makes its way over NE WY, as well as
another front passing through the area.

Otherwise, snow has subsided over the northwest. Only light
accumulations are expected today, as the trough moves over the
area. A more persistent upslope flow pattern will set up later
Saturday night, continuing into Sunday as the upper levels winds
become more zonal. 2 to 4 inches will occur above 8500 feet,
with locally higher amounts of 6 to 8 inches possible in the
Tetons. Light snow will remain possible into Sunday night, with
only 1 to 2 inches expected.

.LONG TERM...(Tuesday through Saturday)

Overview...A warming trend will occur Tuesday and Wednesday with
some record/near record highs possible on Wednesday. Very dry,
warm and breezy to windy conditions will bring elevated fire
weather conditions across central and southern Wyoming on
Wednesday. A strong Canadian cold front will race south along and
east of the Continental Divide Wednesday night spreading chances
of rain and snow south across the area, snow levels quickly
lowering to valley floors behind the front. High temperatures will
be around 30 degrees cooler behind the front on Thursday. Dry
conditions with a some moderation in temperatures are expected on
Friday. Another in a series of Canadian cold fronts may push south
through the area on Saturday.

Discussion...Upper air pattern on Tuesday morning features strong
upper ridge over the western U.S. with downstream trough translating
the Midwest. Our main weather maker during the period will be an
upper low entering the western Gulf of Alaska Tuesday morning.
This system is expected to make landfall in British Columbia
Wednesday morning. Upper ridge over the western U.S. is expected
shift west into the eastern Pacific Wednesday, allowing this
system and its attendant cold front to dive SSE across the
northern/central Rockies Wednesday night and Thursday. ~990 mb
surface low is forecast over NE Montana Wednesday afternoon with
cold front extending SW across western Montana/northern Idaho.
Wyoming will be in the warm sector, "the warm before the storm",
ahead of the front Wednesday with lee side surface trough
extending south from the low across the High Plains. This setup
will result in very warm, windy and dry conditions across much of
the area with elevated fire weather conditions.

ECMWF and GFS show increasing spread swinging this system across the
Rockies into the central U.S. on Thursday.  The ECMWF shows an upper
low closing off near the Four Corners region Friday morning while
the GFS continues to progress upper trough eastward across the
Plains with building heights across Wyoming.  ECMWF closed lows in
the base of upper troughs usually suspect days 6-8, so prefer the
more progressive GFS solution here with some moderation in
temperatures, drier conditions on Friday.  Amplified upper ridge is
expected to remain off the west coast through next weekend, keeping
the door open for clipper systems, Canadian cold fronts to dive
south across the area.  GFS shows the next such system diving south
across the area on Saturday.  Overall, below normal temperatures are
expected Thursday and onward through the weekend.

&&

.AVIATION...For the 18Z TAFS through 18Z Sunday

The primary aviation hazard this forecast period will be gusty
westerly surface wind and potential foothill mountain waves and LLWS
tonight. Many areas to be 18G26kts this afternoon. 700-800mb layer
winds increase overnight which could favor breaking mountain waves
in the vicinity of KCOD and KLND. Have not added more wind at KLND
at this time, but am concerned about potential for brief strong
surface winds at KLND between 09Z-12Z/Sun. Lee slopes of the
Absaroka and Wind River ranges will be impacted by LLWS through
Sunday morning. Trapped moisture across the western mountains will
remain through the forecast period with mountain tops obscured. Low-
end VFR ceilings likely at KJAC through the afternoon with brief
MVFR BKN025 possible. Additional mid-level moisture arrives after
00Z/Sun and spreads across northwest Wyoming. Expect MVFR and
intermittent light snow through the night and much of Sunday morning
at KJAC. Other terminals will be VFR through the period. SCT-BKN040-
050 in the Upper Green River Basin vicinity KBPI and KPNA through
much of the forecast period.

&&

.FIRE WEATHER...

...Elevated Fire Conditions Across Johnson and Natrona counties
this Afternoon...

...High Wind Watch for the Absarokas, Cody Foothills and the Upper
Wind River Basin...

A slight improvement in relative humidity is expected for most
locations, although RH values will still range into the upper
teens and 20s (percent) for portions of central and eastern
Wyoming. Thus, fire weather will likely remain elevated for
another day east of the Divide as winds blow out of the west to
northwest 10 to 30 mph for most locations with some gusts to 40
mph possible, especially over eastern Sweetwater County. High
winds will return again later Saturday night and into Sunday for
the Absarokas, Cody Foothills and the Upper Wind River Basin.
Gusty winds will also return across the Wind Corridor during this
time, with gusts up to 50 mph expected during the day Sunday.

&&

.RIW WATCHES/WARNINGS/ADVISORIES...
High Wind Watch from late tonight through Sunday evening for
WYZ002-003-016.

&&

SHORT TERM...LaVoie
LONG TERM...Meunier
AVIATION...CNJ
FIRE WEATHER...LaVoie
Hazardous weather outlook, Oct 21, 2:55 AM MDT, 11 hours 16 minutes before
Hazardous Weather Outlook
National Weather Service Riverton WY
255 AM MDT Sat Oct 21 2017

WYZ001>020-022>030-221100-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Big Horn Basin-Southwest Big Horn Basin-
Southeast Big Horn Basin-Owl Creek and Bridger Mountains-
Bighorn Mountains West-Bighorn Mountains Southeast-
Northeast Johnson County-Southeast Johnson County-
Teton and Gros Ventre Mountains-Jackson Hole-
Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
255 AM MDT Sat Oct 21 2017

...HIGH WIND WATCH FOR PORTIONS OF NORTHWEST WYOMING SATURDAY
NIGHT AND SUNDAY...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight.

Strong winds will occur after midnight tonight over the Absaroka
Mountains, Cody Foothills and the Upper Wind River Basin. Gusty
winds will also return after midnight from the Green Mountains to
Natrona County. Light snow will occur through the day today in
the northwestern mountains, becoming moderate through the
overnight hours tonight. Elevated fire conditions will again be
possible across Johnson and Natrona counties.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday...Strong winds will continue over the Absaroka Mountains, Cody
Foothills and the Upper Wind River Basin. Gusty winds will also
occur from Rock Springs to Casper. Light to moderate snow
will continue over the northwestern mountains.

Sunday night and Monday...Strong ridge top winds Sunday night.
Strong northwest winds possible Monday in the northern Bighorn
Basin and northeast Johnson County.

Wednesday...Windy, warm and dry conditions may result in elevated
fire weather conditions across the central and south.

Wednesday night and Thursday...A Canadian cold front will blast
south across the area Wednesday night; and spread chances of
snow, possibly mixed with rain early, across north and central
Wyoming. Blustery north wind will accompany the front. Much colder
temperatures are expected on Thursday.

.SPOTTER INFORMATION STATEMENT...

Spotter are urged to report snowfall amounts and wind gusts over
45 mph.

The office that day

Everything else NWS Riverton, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 21, 2:01 PM MDTWinter Weather AdvisoryRIWFremont, Lincoln, Park, Sublette, Teton26 hr
Oct 21, 2:11 PM MDTHigh Wind WatchRIWFremont, Natrona, Sublette, Sweetwater12 hr

Nearby

High Wind Warnings in Wyoming, 2017Every high wind warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.